HP Scanjet 7800 Document Sheet-feed Scanner - Manual (Page 21)

4. Follow the basic scanning steps. For more information, see Basic scanning steps .
Caution Wait two minutes for the components to dry before proceeding to
the next step.
5. Place up to five pages of printed paper in the scanner. Scan and view the results.
6. If streaks still appear, repeat steps 3 through 5. The cleaning cloth can be cycled
through the scanner up to five times within 30 minutes. After that, the cloth will dry
out.
Clean the feed-roller assembly manually
If scanned images have streaks or scratches, clean the feed-roller assembly. Follow
these steps:
1.
Open the scanner hatch.
2. Squeeze the tabs on the feed-roller assembly cover towards each other, and then
lower the feed-roller assembly cover.
3. Use an HP paper-path cleaning cloth to clean the feed roller and the small rubber
pad that is located below it.
User Guide 19